Spark-arrester



UNTTE STATES PATENT FFTCEQ LAMAN o. HAa'rso'UoH, or CLEVELAND, OHIO.

SPARK-ARRESTER.

QBECIFEfil-LTION forming part of Letters Patent No. 308,766,6lated December 2, 188 1:.

Application filed January 29, 1854.

To all whom it may concern:

Be it known that I, LAMAN O. HARTSOUGH, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in SparloArresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in spark-arresters designed more especially for locomotive-engines; and it consists in certain features of construction and in combination of parts, hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section, and Fig. 2 an elevation, of a smoke -pipe with my improved spark arrester attached. Fig. 3 is a view in elevation of the spark-arrester.

A represents the smoke-pipe, provided with the parts A and A in the usual manner, ex-

cept the part A may be made longer than would otherwise be necessary to accommodate the mechanism inside.

B is a screen in the shape of a truncated cone, joined at the bottom to the part A, and with the upper end terminating in a discharging nozzle. This screen may be made of wire-cloth or of perforated metal plate, the meshes or perforations of which are sufiiciently small to prevent the passage of sparks; This screen is of considerable length, so that it may have a sufficient number of perforations or meshes to allow a fine passage for the smoke and exhaust-steam. The function of the screen is to concentrate the sparks into a comparatively small compass, so that they will be discharged against the spark arrester or deflector C. This partis curved both longitudinally and in cross section, as shown in Fig; 3, and terminates below in the ring a, that embraces-the nozzle of the screen B. The part C, both at the sides and upper end, is separated a short distance from thepart A, and is secured by braces (not shown) in any convenient manner.

D is an opening in the part A, commencing just under the upper end of the sparlearrester and running obliquely to near the lower end of the part 0. This opening is covered on the lModel.)

outside by the casing E, secured to the part A, and standing out so as to form a chamber inside and terminates in the pipe 6.

F is an inclined screen, preferably of wiregauze, joining the part A on all sides,and secured thereto and terminating at the lower side at the bottom of the opening D.

G is a screen secured at the intersection of the parts A and A", and curves upward, as shown, and left open at the center.

H is a pipe that receives a portion of the exhauststeam, and is curved at the top, as shown in dotted lines in Fig. 2, so asto discharge into the lower portion of the opening D. The lower end of this pipe is located directly over and near to one of the exhaust-nozzles. (Not shown.) The amount of exhaust-steam that this pipe will receive is governed by the size of the pipe and its proximity to the exhaust nozzle.

It is well known that in locomotiveengines the sparks are thrown upward with violence by the exhaust-steam. By means of the screen B the sparks are discharged through the nozzle thereof, so as to strike the spark-arrester C, and are deflected thereby and thrown through the opening D into the inclosed chamberin the casing E, from which they are discharged through the pipe 6. Any sparks that might escape around the sides of the sparkarrester will be caught by the screen G and thrown back upon the inclined screen F, where they are kept in motion by the steam until they are passed down the incline and are discharged at the lower end of the opening D. The steam that passes through the pipe H. and is discharged, as aforesaid, prevents the sparks from clogging in the passage through the chamber and discharge-pipe e, and also prevents any back draft through the said pipe 6, that might otherwise be had. The arrangement of parts is such that although the sparks are arrested and discharged downward in the manner shown the exhaust-steam and smoke may freely escape from the smoke-pipe in the usual manner. l

\Vhat I claim is 1. The combinatiomwith a smoke-pipe and a conical screen secured at its lower end to said pipe and terminating at its upper end in a nozzle, of a perforated deflector, curved substantially as shown and secured to the upper end of the conical screen.

2. In a spark-arrester for locomotive-engines, the combination, with the smoke-pipe having a spark-escape opening, D, therein, and the conical screen located in and secured in said smoke-pipe, of the deflector secured to the upper en of the conical screen and adapted to direct the sparks from said screen into the spark-escape opening D, substantiallyas set forth.

3. In a spark -arrester for locomotive engines, the inclined screen I*, arranged and secured in the manner described, in con1bination with the screen G, substantially as set forth.

4. In a sparkarrestcr for a locomotive-ea gine, in combination with the deflector Gand the inclined screen F, the oblique opening D, 20

' a smoke-pipe having a spark-escape opening,

D, and adeflector for directing the sparks into said opening, of the injector-pipe I-I,arranged and operating substantially as set forth.

In testimony whereof I sign this specification, in the presence of two Witnesses, this 21st 30 day of January, 1884.

LAMAN G. HARTSOUGH.

\Vitnesses: V

CHAS. H. Donna, ALBERT E. LYNCH. 

